nanocore | a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d

Analysis

max time kernel
122s
max time network
151s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
26-06-2024 01:29

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General

Target

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe
Size

931KB
MD5

691f6cb0459f268016ad101cf6158dff
SHA1

da86d59a096e32846efb61b1ce55d1a5dbb1cb02
SHA256

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d
SHA512

a09174c91dfc3ba00b792aed4b0b8eb4e5244d6590a71cdf81a884634ce124b85003a49aa7bd5cc0784a993c9b0c8d00f9bef614b3dcda8faf57dd65b4e2635e
SSDEEP

24576:m8xWi7p5e9XwX6n+aV6b/XOyc2JfWz13jO:m0WiDOgXc+aVqCj

Score

10^/10

nanocore execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

newsddawork.3utilities.com:1620

maxlogs.webhop.me:1620

Mutex

1fa46b72-10f9-4da3-bc15-84dde165706d

Attributes

activate_away_mode
true
backup_connection_host
maxlogs.webhop.me
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-02-17T03:41:10.727034736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1620
default_group
NewBin
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
1fa46b72-10f9-4da3-bc15-84dde165706d
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
newsddawork.3utilities.com
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2408 powershell.exe
Adds Run key to start application 2 TTPs 1 IoCs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Processes:

MSBuild.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Service = "C:\\Program Files (x86)\\DDP Service\\ddpsvc.exe" MSBuild.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe

description pid process target process

PID 2192 set thread context of 2576 2192 a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe MSBuild.exe
Drops file in Program Files directory 2 IoCs

Processes:

MSBuild.exe

description ioc process

File created C:\Program Files (x86)\DDP Service\ddpsvc.exe MSBuild.exe
File opened for modification C:\Program Files (x86)\DDP Service\ddpsvc.exe MSBuild.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

2692 schtasks.exe

pid	process
2408	powershell.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Service = "C:\\Program Files (x86)\\DDP Service\\ddpsvc.exe"	MSBuild.exe

description	pid	process	target process
PID 2192 set thread context of 2576	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe

description	ioc	process
File created	C:\Program Files (x86)\DDP Service\ddpsvc.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\DDP Service\ddpsvc.exe	MSBuild.exe

pid	process
2692	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exepowershell.exeMSBuild.exe

pid	process
2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe
2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe
2408	powershell.exe
2576	MSBuild.exe
2576	MSBuild.exe
2576	MSBuild.exe
2576	MSBuild.exe
2576	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid process

2576 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exepowershell.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 2192 a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe
Token: SeDebugPrivilege 2408 powershell.exe
Token: SeDebugPrivilege 2576 MSBuild.exe

pid	process
2576	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe
Token: SeDebugPrivilege	2408	powershell.exe
Token: SeDebugPrivilege	2576	MSBuild.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe

description	pid	process	target process
PID 2192 wrote to memory of 2408	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	powershell.exe
PID 2192 wrote to memory of 2408	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	powershell.exe
PID 2192 wrote to memory of 2408	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	powershell.exe
PID 2192 wrote to memory of 2408	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	powershell.exe
PID 2192 wrote to memory of 2692	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	schtasks.exe
PID 2192 wrote to memory of 2692	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	schtasks.exe
PID 2192 wrote to memory of 2692	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	schtasks.exe
PID 2192 wrote to memory of 2692	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	schtasks.exe
PID 2192 wrote to memory of 2576	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2192 wrote to memory of 2576	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2192 wrote to memory of 2576	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2192 wrote to memory of 2576	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2192 wrote to memory of 2576	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2192 wrote to memory of 2576	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2192 wrote to memory of 2576	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2192 wrote to memory of 2576	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2192 wrote to memory of 2576	2192	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe
"C:\Users\Admin\AppData\Local\Temp\a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2192

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mmkGgxmHZUo.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2408

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mmkGgxmHZUo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3801.tmp"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:2692

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2576

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3801.tmp
Filesize
1KB

MD5
98a8cd88202469304b7945c25de5147e

SHA1
5f31a2b80ea79f7699772ef558d5f2abad259ff4

SHA256
3ce6e2ea083471edbf2610c4acb4a94fbbc80c69f522b63f92d9d331aded9837

SHA512
f79465ffd67d51a48f5450e4656ebed0a0cd87248b40b5e5cc2138adf43214bb04dcc44df48becf310cfaf1849837f2ddd6e5d8167568312c8f6d4416fd9ac03

Download Submit
memory/2192-0-0x00000000748DE000-0x00000000748DF000-memory.dmp

Filesize
4KB

Download
memory/2192-1-0x0000000000300000-0x00000000003F0000-memory.dmp

Filesize
960KB

Download
memory/2192-2-0x00000000748D0000-0x0000000074FBE000-memory.dmp

Filesize
6.9MB

Download
memory/2192-3-0x0000000000410000-0x0000000000422000-memory.dmp

Filesize
72KB

Download
memory/2192-4-0x0000000000560000-0x0000000000568000-memory.dmp

Filesize
32KB

Download
memory/2192-5-0x0000000000740000-0x000000000074C000-memory.dmp

Filesize
48KB

Download
memory/2192-6-0x0000000004BA0000-0x0000000004C2A000-memory.dmp

Filesize
552KB

Download
memory/2192-7-0x00000000055B0000-0x000000000562A000-memory.dmp

Filesize
488KB

Download
memory/2192-28-0x00000000748D0000-0x0000000074FBE000-memory.dmp

Filesize
6.9MB

Download
memory/2576-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2576-35-0x0000000000850000-0x0000000000862000-memory.dmp

Filesize
72KB

Download
memory/2576-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2576-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2576-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2576-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2576-23-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2576-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2576-30-0x0000000000510000-0x000000000051A000-memory.dmp

Filesize
40KB

Download
memory/2576-31-0x0000000000560000-0x000000000057E000-memory.dmp

Filesize
120KB

Download
memory/2576-32-0x0000000000580000-0x000000000058A000-memory.dmp

Filesize
40KB

Download
memory/2576-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2576-36-0x0000000000990000-0x00000000009AA000-memory.dmp

Filesize
104KB

Download
memory/2576-37-0x00000000009B0000-0x00000000009BE000-memory.dmp

Filesize
56KB

Download
memory/2576-40-0x0000000002100000-0x000000000210E000-memory.dmp

Filesize
56KB

Download
memory/2576-39-0x00000000020B0000-0x00000000020BC000-memory.dmp

Filesize
48KB

Download
memory/2576-38-0x00000000020A0000-0x00000000020B2000-memory.dmp

Filesize
72KB

Download
memory/2576-42-0x0000000002120000-0x0000000002130000-memory.dmp

Filesize
64KB

Download
memory/2576-41-0x0000000002110000-0x0000000002124000-memory.dmp

Filesize
80KB

Download
memory/2576-43-0x0000000002170000-0x0000000002184000-memory.dmp

Filesize
80KB

Download
memory/2576-44-0x0000000002180000-0x000000000218E000-memory.dmp

Filesize
56KB

Download
memory/2576-45-0x0000000004840000-0x000000000486E000-memory.dmp

Filesize
184KB

Download
memory/2576-46-0x00000000021A0000-0x00000000021B4000-memory.dmp

Filesize
80KB

Download